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A platform for research: civil engineering, architecture and urbanism
Construction method of high-altitude double-layer super-long cantilever reinforced concrete structure
The invention discloses a construction method of a high-altitude double-layer super-long cantilever reinforced concrete structure, belongs to the field of building construction, and aims to solve thetechnical problems about how to perfect high-altitude large cantilever structure construction, effectively control the internal stress change of concrete and profile steel deformation while the construction period is saved, and prevent cantilever section concrete from cracking due to stress. According to the adopted technical scheme, a method specifically comprises the following steps that S1, cantilever section steel is adopted in a cantilever beam to serve as foundations for supporting scaffolds, the cantilever section steel is fixed through steel bar pull rings pre-buried in floor slabs, and the steel pipe fastener type all-round scaffolds are erected at the upper portions of the cantilever section steel; S2, in combination with different cantilever lengths, the bending moment of the section steel at the lower part of the cantilever beam is checked, and calculation that a cantilever section steel beam support meets the length range of the cantilever beam is carried out; S3, horizontal connecting rod pieces are installed between the cantilever section steel; and S4, a lever method principle is applied to construction of the double-layer cantilever reinforced concrete structure, and construction is conducted from inside to outside when a full supporting frame is erected.
本发明公开了一种高空双层超长悬挑钢筋混凝土结构施工方法，属于建筑施工领域，本发明要解决的技术问题为如何完善高空大悬挑结构施工，节省工期的同时有效控制混凝土内部应力变化及型钢变形，防止悬挑段混凝土受力开裂，采用的技术方案为：该方法具体如下：S1、悬挑梁采用悬挑型钢作为支撑脚手架的基础，悬挑型钢通过在楼板内预埋的钢筋拉环进行固定，悬挑型钢上部搭设钢管扣件式满堂脚手架；S2、结合悬挑长度不同的情况，对悬挑梁下部型钢弯矩及进行核算，计算悬挑型钢梁支撑满足悬挑梁长度范围；S3、在悬挑型钢之间安装水平连接杆件；S4、双层悬挑钢筋混凝土结构施工运用杠杆法原理，满堂支撑架搭设时由内向外施工。
Construction method of high-altitude double-layer super-long cantilever reinforced concrete structure
The invention discloses a construction method of a high-altitude double-layer super-long cantilever reinforced concrete structure, belongs to the field of building construction, and aims to solve thetechnical problems about how to perfect high-altitude large cantilever structure construction, effectively control the internal stress change of concrete and profile steel deformation while the construction period is saved, and prevent cantilever section concrete from cracking due to stress. According to the adopted technical scheme, a method specifically comprises the following steps that S1, cantilever section steel is adopted in a cantilever beam to serve as foundations for supporting scaffolds, the cantilever section steel is fixed through steel bar pull rings pre-buried in floor slabs, and the steel pipe fastener type all-round scaffolds are erected at the upper portions of the cantilever section steel; S2, in combination with different cantilever lengths, the bending moment of the section steel at the lower part of the cantilever beam is checked, and calculation that a cantilever section steel beam support meets the length range of the cantilever beam is carried out; S3, horizontal connecting rod pieces are installed between the cantilever section steel; and S4, a lever method principle is applied to construction of the double-layer cantilever reinforced concrete structure, and construction is conducted from inside to outside when a full supporting frame is erected.
本发明公开了一种高空双层超长悬挑钢筋混凝土结构施工方法，属于建筑施工领域，本发明要解决的技术问题为如何完善高空大悬挑结构施工，节省工期的同时有效控制混凝土内部应力变化及型钢变形，防止悬挑段混凝土受力开裂，采用的技术方案为：该方法具体如下：S1、悬挑梁采用悬挑型钢作为支撑脚手架的基础，悬挑型钢通过在楼板内预埋的钢筋拉环进行固定，悬挑型钢上部搭设钢管扣件式满堂脚手架；S2、结合悬挑长度不同的情况，对悬挑梁下部型钢弯矩及进行核算，计算悬挑型钢梁支撑满足悬挑梁长度范围；S3、在悬挑型钢之间安装水平连接杆件；S4、双层悬挑钢筋混凝土结构施工运用杠杆法原理，满堂支撑架搭设时由内向外施工。
Construction method of high-altitude double-layer super-long cantilever reinforced concrete structure
高空双层超长悬挑钢筋混凝土结构施工方法
GAO SHANYOU (author) / MA HAILONG (author) / WANG XILUN (author) / ZHENG LEI (author) / HAN NING (author) / WANG NING (author)
2020-11-10
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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